Greenland’s Melt Season Started Nearly Two Months Early

http://www.skepticalscience.com/greenland-melt-season-started-nearly-two-months-early.html

Posted on 3 June 2016
This is a re-post from Brian Kahn at Climate Central

To say the 2016 Greenland melt season is off to the races is an understatement.

Warm, wet conditions rapidly kicked off the melt season this weekend, more than a month-and-a-half ahead of schedule. It has easily set a record for earliest melt season onset, and marks the first time it’s begun in April.

Little to no melt through winter is the norm as sub-zero temperatures keep Greenland’s massive ice sheet, well, on ice. Warm weather usually kicks off the melt season in late May or early June, but this year is a bit different.

Record warm temperatures coupled with heavy rain mostly sparked 12 percent of the ice sheet to go into meltdown mode (hat tip to Climate Home's Megan Darby). Almost all the melt is currently centered around southwest Greenland.

According to Polar Portal, which monitors all things ice-related in the Arctic, melt season kicks off when 10 percent of the ice sheet experiences surface melt. The previous record for earliest start was May 5, 2010.

This April kickoff is so bizarrely early, scientists who study the ice sheet checked their analysis to make sure something wasn’t amiss before making the announcement.

“We had to check that our models were still working properly” Peter Langen, a climate scientist at the Denmark Meteorological Institute (DMI), told the Polar Portal.

But alas, the models are definitely working and weather data and stories coming out of West Greenland have borne that out. According to DMI, temperatures at Kangerlussuaq, a small village in southwest Greenland, set an April record for that location when they reached 64.4°F (17.8°C) on Monday. That’s just a scant .4°F (.2°C) off the all-time Greenland high for April. Heavy rain have also inundated local communities.

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